If I understood you correctly...
Access points ( probably not all of them):
https://maps.google.com/maps?q=2693+West+Liberty+Avenue+Pittsburgh,+PA+15216&hl=en&ll=40.444385,-80.003003&spn=0.001096,0.001603&sll=40.397182,-80.029497&hnear=2693+W+Liberty+Ave,+Pittsburgh,+Allegheny,+Pennsylvania+15216&t=h&z=20
https://maps.google.com/maps?q=2693+West+Liberty+Avenue+Pittsburgh,+PA+15216&hl=en&ll=40.44502,-80.001036&spn=0.001096,0.001603&sll=40.397182,-80.029497&hnear=2693+W+Liberty+Ave,+Pittsburgh,+Allegheny,+Pennsylvania+15216&t=h&z=20
https://maps.google.com/maps?q=2693+West+Liberty+Avenue+Pittsburgh,+PA+15216&hl=en&ll=40.445507,-79.998949&spn=0.001096,0.001603&sll=40.397182,-80.029497&hnear=2693+W+Liberty+Ave,+Pittsburgh,+Allegheny,+Pennsylvania+15216&t=h&z=20
https://maps.google.com/maps?q=2693+West+Liberty+Avenue+Pittsburgh,+PA+15216&hl=en&ll=40.446472,-79.99633&spn=0.001095,0.001603&sll=40.397182,-80.029497&hnear=2693+W+Liberty+Ave,+Pittsburgh,+Allegheny,+Pennsylvania+15216&t=h&z=20
https://maps.google.com/maps?q=2693+West+Liberty+Avenue+Pittsburgh,+PA+15216&hl=en&ll=40.44787,-79.99373&spn=0.001095,0.001603&sll=40.397182,-80.029497&hnear=2693+W+Liberty+Ave,+Pittsburgh,+Allegheny,+Pennsylvania+15216&t=h&z=20
https://maps.google.com/maps?q=2693+West+Liberty+Avenue+Pittsburgh,+PA+15216&hl=en&ll=40.449773,-79.990672&spn=0.001095,0.001603&sll=40.397182,-80.029497&hnear=2693+W+Liberty+Ave,+Pittsburgh,+Allegheny,+Pennsylvania+15216&t=h&z=20
https://maps.google.com/maps?q=2693+West+Liberty+Avenue+Pittsburgh,+PA+15216&hl=en&ll=40.450838,-79.989069&spn=0.001095,0.001603&sll=40.397182,-80.029497&hnear=2693+W+Liberty+Ave,+Pittsburgh,+Allegheny,+Pennsylvania+15216&t=h&z=20
https://maps.google.com/maps?q=2693+West+Liberty+Avenue+Pittsburgh,+PA+15216&hl=en&ll=40.453418,-79.985098&spn=0.002191,0.003205&sll=40.397182,-80.029497&hnear=2693+W+Liberty+Ave,+Pittsburgh,+Allegheny,+Pennsylvania+15216&t=h&z=19
https://maps.google.com/maps?q=2693+West+Liberty+Avenue+Pittsburgh,+PA+15216&hl=en&ll=40.454787,-79.983457&spn=0.002191,0.003205&sll=40.397182,-80.029497&hnear=2693+W+Liberty+Ave,+Pittsburgh,+Allegheny,+Pennsylvania+15216&t=h&z=19
https://maps.google.com/maps?q=2693+West+Liberty+Avenue+Pittsburgh,+PA+15216&hl=en&ll=40.455984,-79.981676&spn=0.002191,0.003205&sll=40.397182,-80.029497&hnear=2693+W+Liberty+Ave,+Pittsburgh,+Allegheny,+Pennsylvania+15216&t=h&z=19
It starts at 25th. At rides we use it sometimes and 25th to 31st either Railroad street or Smallman and then up to 36th Smallman and then Butler.